Can Buffett's Dairy Queen make it in Manhattan?

Morgan Brennan executes a taste test to see what Manhattanites prefer: Dairy Queen or Shake Shack!

There are more than 6,000 Dairy Queen locations around the world, but until this week there were exactly zero in Manhattan.

The Minneapolis-based chain, owned by Warren Buffett's Berkshire Hathaway and famous for its soft-serve Blizzard Treats, opened its first restaurant on 14th Street near Union Square in the borough on Thursday.

That's just a few blocks from the Madison Square flagship location of one of its new competitors.

Celebrity restaurateur Daniel Meyer, CEO of the Union Square Hospitality Group, was known for creating some of New York's best-known upscale restaurants, including Union Square Cafe and the Gramercy Tavern.

In 2004, he decided to try a "modern day roadside burger stand." Shake Shack has been drawing long lines of New Yorkers ever since.

How do they measure up?

CNBC's Morgan Brennan went to the new battlefield and set up a blind taste test for country-boy Buffett vs. big-city Meyer.